Io, Europa, Ganymede, and Callisto. Discovered by Galileo.
Hi Jupiter is the 5th and the biggest planet in the solar system. The planet Jupiter has 63 moons. The 4 main known and the big moons of Jupiter are Io, Ganymede, Europa and Callisto. Ganymede is the biggest moon of Jupiter and is bigger than that of the Earth.
The biggest planet is Jupiter. It has the 4, large Galilean moons but also other smaller moons.
pluto has 4 known moons
No planet has 4 moons. (planets as far as in our solar system)
Galileo was the first to look at the planet Jupiter through a telescope, and to observe the moons of Jupiter (the 4 largest moons are still known as the Galilean moons).
Jupiter has 53 named moons and at least 26 more awaiting official naming, bringing the total to 79 known moons.
Jupiter does not have 4 moons. It has 64 moons confirmed.
Galileo was the first to observe the 4 largest moons of Jupiter (which are still known as the Galilean moons, in his honor).
Jupiter has those, plus at least 48 more satellites.
Io, Ganymede, Callisto and Europa are the 4 major moons, but there are about 60 other known smaller ones.
The planet with 4 rings and 8 moons is Jupiter. It has a system of rings known as the "Rings of Jupiter" and it is also known to have at least 79 moons, with the four largest being Io, Europa, Ganymede, and Callisto.
They are called the "Galilean Moons" because they were first seen/discovered by Galileo. There are 4 of them and they are named - Io, Europa, Ganymede and Callisto.